介词的基本用法与习惯搭配He came back late, ________ which time all the guests had already left
—Though it __________ in the desert most of the year, people still live there. —That’s the case. They say east or west home is the best.
Many experts seem to agree that _______ certain limit should be set on ________ consumption of cars to ease air pollution.
— It’s reported in the local newspaper that the murderer was caught in a small town. — ______
Unemployment in some western countries is on the crease. A growing number of young people, ______, are finding themselves out of work.
— How long have you been here? — Only about five minutes. Henry and Simon ______ here with me.